Braulio Carrillo-La Selva Region
- Detailed geographic and ecological information on this area of the country, including indigenous species, environmental threats, bibliography, and photos.

The Cloudbridge Project
- A private nature reserve created to preserve biodiversity in the tropical cloud forest adjoining the Chirripó Pacifico river on the slopes of Mt. Chirripó. Describes site ecology and reforestation project.

Diptera of Costa Rica
- A project organized for collecting, mounting and identification of specimens of flies and mosquitoes. Includes information about the staff and facilities, sampling sites, and publications.

La Gamba Field Station
- Research, teaching and education institution located on the edge of the Piedras Blancas National Park. Lists programs and publications, with information on visiting or donating. [English/German]

Procuenca San Juan
- Multi-organizational workshop on the climate and socio-economic conditions of the San Juan River Basin. Includes field investigations and technical reports with maps.

Project ALAS Arthropods of La Selva
- A large scale inventory of arthropod diversity in the lowland tropical rainforest of La Selva. Includes a history and description of the laboratory facilities, information management and research publications.